package com.hissy.common.design.action.watcher;

/**
 * Created by zhangyanfei on 2019/4/10.
 *
 * @author zhangyanfei
 * @date 2019/04/10
 */
public class Police implements Watcher{
    @Override
    public void update() {
        System.out.println("Police invoke something");
    }
}
